diff --git a/client/python/upbit/pkginfo.py b/client/python/upbit/pkginfo.py
index 253c8e3..450bff6 100644
--- a/client/python/upbit/pkginfo.py
+++ b/client/python/upbit/pkginfo.py
@@ -28,8 +28,8 @@ def _get_versions(package_name):
 
 PACKAGE_NAME     = 'upbit-client'
 
-OPEN_API_VERSION = '1.2.0'
-CURRENT_VERSION  = OPEN_API_VERSION+'.4'
+OPEN_API_VERSION = '1.2.2'
+CURRENT_VERSION  = OPEN_API_VERSION+'.0'
 
 RELEASED_VERSION = _get_versions(PACKAGE_NAME)
 LATEST_VERSION   = RELEASED_VERSION[0]
diff --git a/client/python/upbit/websocket.py b/client/python/upbit/websocket.py
index 358bb55..4bb0c1d 100644
--- a/client/python/upbit/websocket.py
+++ b/client/python/upbit/websocket.py
@@ -75,6 +75,15 @@ def connect(
             ping_timeout=ping_timeout
         )
 
+    async def ping(self):
+        """
+        Client to Server PING
+        """
+        async with self as conn:
+            await conn.send('PING')
+            recv = await conn.recv()
+            return json.loads(recv)
+
     @staticmethod
     def generate_orderbook_codes(
         currencies: Union[List[str]],